Add back missing function test file

test/functional/apps/discover/_discover_histogram.js

@@ -0,0 +1,86 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import expect from '@kbn/expect';
+
+export default function({ getService, getPageObjects }) {
+  const log = getService('log');
+  const esArchiver = getService('esArchiver');
+  const browser = getService('browser');
+  const kibanaServer = getService('kibanaServer');
+  const PageObjects = getPageObjects(['common', 'discover', 'header', 'timePicker']);
+  const defaultSettings = {
+    defaultIndex: 'logstash-*',
+  };
+
+  describe('discover histogram', function describeIndexTests() {
+    before(async function() {
+      // delete .kibana index and update configDoc
+      await kibanaServer.uiSettings.replace(defaultSettings);
+
+      log.debug('load kibana index with default index pattern');
+      await esArchiver.load('discover');
+      await esArchiver.load('long_window_logstash');
+      await esArchiver.load('visualize');
+      log.debug('discover');
+      await PageObjects.common.navigateToApp('discover');
+      await kibanaServer.uiSettings.replace({ 'dateFormat:tz': 'Europe/Berlin' });
+      await browser.refresh();
+      await PageObjects.header.awaitKibanaChrome();
+      await PageObjects.common.navigateToApp('discover');
+      await PageObjects.discover.selectIndexPattern('long-window-logstash-*');
+    });
+    after(async () => {
+      await esArchiver.unload('long_window_logstash');
+      await esArchiver.unload('visualize');
+      await esArchiver.unload('discover');
+    });
+
+    it('should visualize monthly data with different day intervals', async () => {
+      //Nov 1, 2017 @ 01:00:00.000 - Mar 21, 2018 @ 02:00:00.000
+      const fromTime = '2017-11-01 00:00:00.000';
+      const toTime = '2018-03-21 00:00:00.000';
+      await PageObjects.timePicker.setAbsoluteRange(fromTime, toTime);
+      await PageObjects.discover.setChartInterval('Monthly');
+      await PageObjects.header.waitUntilLoadingHasFinished();
+      const chartCanvasExist = await PageObjects.discover.chartCanvasExist();
+      expect(chartCanvasExist).to.be(true);
+    });
+    it('should visualize weekly data with within DST changes', async () => {
+      //Nov 1, 2017 @ 01:00:00.000 - Mar 21, 2018 @ 02:00:00.000
+      const fromTime = '2018-03-01 00:00:00.000';
+      const toTime = '2018-05-01 00:00:00.000';
+      await PageObjects.timePicker.setAbsoluteRange(fromTime, toTime);
+      await PageObjects.discover.setChartInterval('Weekly');
+      await PageObjects.header.waitUntilLoadingHasFinished();
+      const chartCanvasExist = await PageObjects.discover.chartCanvasExist();
+      expect(chartCanvasExist).to.be(true);
+    });
+    it('should visualize monthly data with different years Scaled to 30d', async () => {
+      //Nov 1, 2017 @ 01:00:00.000 - Mar 21, 2018 @ 02:00:00.000
+      const fromTime = '2010-01-01 00:00:00.000';
+      const toTime = '2018-03-21 00:00:00.000';
+      await PageObjects.timePicker.setAbsoluteRange(fromTime, toTime);
+      await PageObjects.discover.setChartInterval('Daily');
+      await PageObjects.header.waitUntilLoadingHasFinished();
+      const chartCanvasExist = await PageObjects.discover.chartCanvasExist();
+      expect(chartCanvasExist).to.be(true);
+    });
+  });
+}

test/functional/apps/discover/index.js

@@ -34,6 +34,7 @@ export default function({ getService, loadTestFile }) {
 
     loadTestFile(require.resolve('./_saved_queries'));
     loadTestFile(require.resolve('./_discover'));
+    loadTestFile(require.resolve('./_discover_histogram'));
     loadTestFile(require.resolve('./_filter_editor'));
     loadTestFile(require.resolve('./_errors'));
     loadTestFile(require.resolve('./_field_data'));